Seizure, stiff body, blue face. Women.

Hey Doc's, My wife is 32 weeks pregnent and day before yesterday she got severe seizure, first she got slight head swing followed by face disfiguring, then her whole body got stiff, saliva flowing from mouth with eye balls rolling up, few seconds later her face turned blue. This condition was for 1-2 mins and she then slowly regained consciousness, but she couldn't remember recent events and after 250-45 mins she remembered everything. In this period she didn't pass unine/stools. We then approached a nearby hospital and took MRI, The Doc says it's tumor by looking into MRI scan but radiologist couldn't make a decision and recommends MRI with contrast and when I said the patient is pregnant the radiologist said to approach 2-3 doctors. Please guide me on this. if it's safe to have MRI with contrast for pregnant women. First time she felt a slight face disfiguring around two months back and then again after 25-30 later, this was thrid time in ~3 mnths and escalated very big. plz help.